Life and Times: Michael Jackson

The agents served the pharmacy with a search warrant, part of their investigation into the medicine that could've contributed to Jackson's death, Drug Enforcement Adminstration spokesman Jose Martinez told the Associated Press.

Agents found evidence Murray procured an unknown amount of propofol, known also by its brand name Diprivan, at the pharmacy. Jackson's death is being investigated as a manslaughter, but no charges have yet been filed in the death.

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Murray's lawyer Edward Chernoff said this week that his client did not prescribe anything that should've killed the pop star, but had no immediate comment about the agents' findings in Las Vegas.

Agents and police also raided Murray's Las Vegas home and medical practice last month, seizing records related to Murray's relationship with Jackson. Jackson was allegedly found dead near an empty IV bag in Murray's room.

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The Los Angeles County Coroner's office said Monday that Jackson's autopsy was complete, but that the results would be withheld indefinitely until police had finished investigating the death.